> >> > I suspect this is the pitch and roll sensor he is using.
 > >> > If so it won't work in an aircraft as it is a gravity vector
 sensor.
 > >> > An A/C  gravity vector always points toward the bottom of the
 aircraft and
 > >> > not down. This indicates a disturbing lack of understanding of

the

 > problems :-)>
 > >> > I hope he does not test it under real IFR conditions :-)>


 > >> I just wonder if that could be used to advantage when

information

 from a
 > magnetomometer (sp?) is compared and the difference used for skid,

AOA

 and
 > other attitude display?
 > >> ...Chrissi

 > guys ----
 > You HAVE to have either an attitude reference (like a gyro) or an
 inertial rate
 > system (laser ring, accelerometers, or the laminar airflow system

used

 in the
 > homebuilt Don Hewitt (???) system a few years ago in Sport Av).

The

 rate
 > systems drift more in most cases.  A gravity sensor won't get it

(have

 you
 > ever seen Bob Hoover pour a glass of water as he does a barrel

roll?)

 ,but
 > if the accelerometer could be used as a rate system, then it could
 work.
 >
 > Bill Freeman
 > Long EZ builder & pilot
 > BSME, MSME
 > EAA Technical Counselor

 One is highly unlikely to get any effective attitude system for $100.
 That is the holy grail for a lot of need for attitude reference
 in many different transportation fields for the last 70 years.
 Just ask Greg.

 BTW It is hard to beat an artificial horizon vacuum gyro for cost.

 Paul Lamar

Does this little device get us any closer?  Miniature Ceramic Gyro.

http://www.tokin.com/products/PDF-New-Products/pd-057e.pdf

I think Greg Richter and Rick Price would agree that .66 mv per degree per second +/- 20%
would be near useless. I could be wrong.:-)>

Paul Lamar

 
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